73 material is conductive. The holes are lined with insulation to prevent the enamel coating on magnet wire from scraping off and shorting to the core as it is being pulled through the holes.
Also, it is easier to get more turns in a winding using Teflon wire vs. some other types. The latest edition of Low Band Dxing by ON4UN goes into more detail about this. 73, Mike www.w0btu.com On Apr 28, 2017 8:14 AM, "P H via Topband" <[email protected]> wrote: I've noticed use of teflon tubing in a Flag family transformers. Apart from low losses: is there another reason to use teflon coated wires? _________________ Topband Reflector Archives - http://www.contesting.com/_topband
